TY - RPRT TI - Simple solid-phase extraction method for determination of polychlorinated biphenyls and selected organochlorine pesticides in human serum. AU - K Conka AU - B Drobná AU - A Kocan AU - J Petrík PY - 2005 DO - 10.1016/j.chroma.2004.11.029 UR - https://pubmed.ncbi.nlm.nih.gov/16114233/ ID - 16114233 ER -